A sinusoidal electromagnetic wave in vacuum delivers energy at an average rate of 5.00 W/m2.
What are the amplitudes of the electric and magnetic fields of this wave? (c = 3.0 x 108 m/s, 0 = 4 10-7 T m/A, 0 = 8.85 10-12 C2/N m2)
Question 2
A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. At the moment contact is made with the battery (a) the voltage across the capacitor is A.
equal to the battery's terminal voltage. B) less than the battery's terminal voltage, but greater than zero. C) equal to the battery's terminal voltage. D) zero. (b) the voltage across the resistor is A. equal to the battery's terminal voltage. B) less than the battery's terminal voltage, but greater than zero. C) equal to the battery's terminal voltage. D) zero.
Energy flow through an ecosystem.
Food choices vs. energy choices
Ocean Energy
Climate models the flow of mass and energy
Energy Transfer
Expressing amounts of energy in different energy units is necessary to solve many chemistry ...